Article
Marine & Freshwater Biology
Yanina L. Idaszkin, Rosana Polifroni, Jennifer Mesa-Marin
Summary: This study isolated various bacteria with plant growth promoting attributes in the Patagonian salt marshes, primarily from the rhizosphere of halophytes in heavy metal polluted areas of San Antonio salt marsh. The results indicated that bacteria in polluted soils were more likely to possess plant growth promoting properties, suggesting that coastal hazardous scenarios may be a good opportunity to seek for PGPR.
ESTUARINE COASTAL AND SHELF SCIENCE
(2021)
Review
Microbiology
Luana Alves de Andrade, Carlos Henrique Barbosa Santos, Edvan Teciano Frezarin, Luziane Ramos Sales, Everlon Cid Rigobelo
Summary: Plant Growth-Promoting Rhizobacteria (PGPR) promote plant growth and health through various mechanisms such as increased nutrient availability, phytohormone production, protection against pathogens, and reduction of diseases. PGPR also help plants withstand abiotic stresses and detoxify plants from heavy metals. PGPR are important in sustainable agriculture for reducing synthetic fertilizers and pesticides, promoting plant growth and enhancing soil quality.
Article
Environmental Sciences
Yi Li, Lijuan Mo, Xiaoqin Zhou, Yawei Yao, Jiangming Ma, Kehui Liu, Fangming Yu
Summary: The study characterized the plant growth-promoting traits of Enterobacter sp. FM-1 and its ability to promote growth, increase IAA, P, and Fe concentrations, and facilitate Cd and Pb phytoremediation in Centella asiatica L. The results showed that FM-1 secreted IAA, produced siderophores, and had P-solubilization ability, even under Cd exposure. Pot experiments confirmed that FM-1 successfully colonized the roots of C. asiatica L., reducing soil pH and increasing bioavailability of Cd and Pb.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Microbiology
Lucia M. Toffoli, Martin G. Martinez-Zamora, Norma N. Medrano, Cecilia A. Fontana, Nadia C. Lovaisa, Paola Delaporte-Quintana, Juliana M. Elias, Sergio M. Salazar, Raul O. Pedraza
Summary: This study evaluated the natural occurrence of the plant growth-promoting bacterium Azospirillum brasilense in petunia plants, showing its capacity to improve plant growth and flowering. Inoculation with Azospirillum brasilense resulted in significant improvements in root length, dry weight, greenness, and other parameters in petunia plants.
JOURNAL OF BASIC MICROBIOLOGY
(2021)
Article
Plant Sciences
Tahir Naqqash, Mahreen Fatima, Saif-ur-Rehman, Sherien Bukhat, Muhammad Shahid, Ghulam Shabir, Muhammad Tahir, Muhammad Arshad, Muhammad Babar
Summary: This study isolated Enterobacter spp. microbes with potential to promote plant growth from the rhizosphere of Cyperus rotundus L., demonstrating their effectiveness as biofertilizers without affecting normal plant growth. The isolated strains showed various plant growth-promoting traits and significantly improved wheat plant growth and photosynthetic machinery in greenhouse experiments. These findings highlight the importance of exploring weed rhizosphere for novel beneficial microbes for sustainable agriculture practices.
JOURNAL OF PLANT GROWTH REGULATION
(2022)
Article
Agronomy
Abdelali Idrissi Lahsini, Abdessamad Sallami, El Houcine Ait-Ouakrim, Hanane El Khedri, Morad Obtel, Allal Douira, Cherkaoui El Modafar, Noreddine Benkerroum, Chouhra Talbi, Abdelghani Chakhchar, Abdelkarim Filali-Maltouf
Summary: The study aimed to isolate and identify rhizobacteria with plant growth-promoting (PGP) properties from the rhizosphere of olive tree groves in southern Morocco. The selected isolates showed good tolerance to high temperature and salinity stress and exhibited PGP activities such as hormone production and phosphate solubilization. Molecular identification revealed that the isolates belonged to multiple genera. Three bacterial strains with excellent tolerance and multi-trait PGP activities were selected for further research and application.
Article
Plant Sciences
Said M. El-Bialy, Mohammed E. El-Mahrouk, Taha Elesawy, Alaa El-Dein Omara, Fathy Elbehiry, Hassan El-Ramady, Beni Aron, Jozsef Prokisch, Eric C. Brevik, Svein O. Solberg
Summary: The application of biological nanofertilizers can promote the growth and development of strawberry seedlings, and improve their nutritional status.
Article
Agronomy
Pooja Sharma, Palak Bakshi, Rupinder Kaur, Ashutosh Sharma, Renu Bhardwaj, Mohamed A. El-Sheikh, Anshika Tyagi, Parvaiz Ahmad
Summary: The study demonstrates that earthworms and plant-growth-promoting rhizobacteria can alleviate the toxic effects of Cr on plants by enhancing growth and metabolite production.
Article
Chemistry, Physical
Jan P. Goetze, Florian Anders, Simon Petry, Jan Felix Witte, Heiko Lokstein
Summary: This study presents comprehensive experimental spectroscopic and computational data for relevant plant light harnessing pigments. The investigated pigments show similar photophysics despite differences in excitation energies. The vibrational broadening of carotenoid spectra matches well with experimental data, while Q and Soret band reorganization energies are similar in chlorophylls a and b. Furthermore, this study suggests the existence of an intramolecular charge transfer state in the Soret region of chlorophylls, which has not been experimentally confirmed before.
Article
Plant Sciences
Maria T. Salazar-Ramirez, Jorge Saenz-Mata, Pablo Preciado-Rangel, Manuel Fortis-Hernandez, Edgar O. Rueda-Puente, Pablo Yescas-Coronado, Jorge A. Orozco-Vidal
Summary: In the communities of Sierra Mojada and Viesca, Coahuila, Mexico, rhizosphere samplings of candelilla were collected to isolate and characterize plant growth-promoting rhizobacteria. 21 strains were identified with potential as plant growth promoters, showing high activities in organic substances like siderophores, phosphates solubilization, production of Indole-3-acetic acid (IAA), and ACC deaminase enzyme. 16S rRNA sequencing identified the genera Bacillus, Staphylococcus, Acinetobacter, Cronobacter, and Siccibacter, demonstrating the potential of isolated rhizobacteria as growth promoters.
NOTULAE BOTANICAE HORTI AGROBOTANICI CLUJ-NAPOCA
(2021)
Article
Chemistry, Multidisciplinary
Marika Pellegrini, Giancarlo Pagnani, Massimiliano Rossi, Sara D'Egidio, Maddalena Del Gallo, Cinzia Forni
Summary: The study focused on analyzing the application of a consortium of four bacteria in open field cultivation of carrots, demonstrating their positive impacts on plant growth and soil microbial community. Each strain in the consortium showed different characteristics in promoting plant growth and phosphate solubilization, with positive effects observed on plant development and soil fertility. The research deepened our understanding of these bacteria and highlighted their potential for sustainable agriculture as biofertilizers.
APPLIED SCIENCES-BASEL
(2021)
Article
Agronomy
Danyllo Amaral de Oliveira, Solange da Cunha Ferreira, Daiany Larissa Ribeiro Carrera, Cleyson Pantoja Serrao, Daihany Moraes Callegari, Nicolle Louise Ferreira Barros, Francinilson Meireles Coelho, Claudia Regina Batista de Souza
Summary: Despite limited knowledge about endophytic bacteria in plants from the Amazon region, a study found that Piper tuberculatum endophytic Pseudomonas (isolates Pt12 and Pt13) were able to produce growth-promoting substances and potentially act as biofertilizers in addition to controlling plant diseases.
Article
Agronomy
Musa Seymen, Duran Yavuz, Selcan Eroglu, Banu Cicek Ari, Omer Burak Tanriverdi, Zeliha Atakul, Neslihan Issi
Summary: Salinity and drought are major stress factors for agricultural production in semi-arid regions. This study evaluated the effects of different levels of irrigation water salinity and water deficit on cabbage seedlings. The results showed that both factors caused significant losses in plant growth and increased stress-related parameters. Salinity and water stress also decreased photosynthetic activity. The best results were observed under certain combinations of salinity and water deficit levels. It was concluded that a 25% water deficit and irrigation water salinity exceeding 2.5 dS/m have adverse effects on cabbage plants in arid and semi-arid regions.
Article
Biology
Abdul Samad, Kanval Shaukat, Mahmood-Ur-Rehman Ansari, Mereen Nizar, Noreen Zahra, Ambreen Naz, Hafiz Muhammad Waleed Iqbal, Ali Raza, Vladan Pesic, Ivica Djalovic
Summary: Salinity is a major abiotic factor that limits plant growth and productivity. Foliar application of plant growth regulators (PGRs) has the potential to mitigate the negative impacts of salinity. A field experiment was conducted to investigate the role of PGRs in alleviating salinity stress on Plantago ovata, an important medicinal plant. The results showed that PGRs enhanced photosynthetic pigments and activated defense mechanisms, leading to improved yield under salt stress. The most effective treatments were PRO and MLE, which predominantly ameliorated the harsh impacts of salinity.
Article
Plant Sciences
O. V. Dymova, I. G. Zakhozhiy, T. K. Golovko
Summary: The authors studied the changes in pigment complex and photosystem II (PSII) in overwintered leaves of Ajuga reptans, and observed a partial restoration of the pigment pool and repair of PSII in the leaves after winter, indicating the adaptive mechanisms of the plant to recover functional activity.
RUSSIAN JOURNAL OF PLANT PHYSIOLOGY
(2023)
Article
Biochemistry & Molecular Biology
K. K. Fursova, S. L. Sokolov, M. P. Shchannikova, D. A. Nikanova, O. A. Artem'eva, E. N. Kolodina, A. S. Sorokin, T. R. Dzhelyadin, I. Shulcheva, A. O. Shepelyakovskaya, N. A. Zinovieva, F. A. Brovko
Summary: The analysis of milk microbiomes from healthy cows and those with different forms of mastitis in Central Russia revealed an increase in certain bacterial taxonomic units in cows with mastitis, such as Proteobacteria phylum primarily belonging to Pseudomonadales and Burkholderiales, as well as Streptococcaceae, Staphylococcaceae, and Bacillaceae. The percentage of Planococcaceae OTUs decreased, and the presence of rarely presented OTUs also changed in the milk of cows with mastitis.
DOKLADY BIOCHEMISTRY AND BIOPHYSICS
(2021)
Article
Microbiology
Tatiana Yu Izmalkova, Olesya Sazonova, Ekaterina A. Dymova, Sergei L. Sokolov, Arslan B. Gafarov
Summary: In this study, antibiotic-resistant microorganisms were investigated in playgrounds with different types of coatings. The study found that sand was the cleanest coating, while pressed rubber crumb coating was the most contaminated. A new conjugative plasmid conferring tetracycline resistance was discovered. Periodic treatment of the rubber crumb coating with non-toxic antiseptics is recommended.
CURRENT MICROBIOLOGY
(2022)
Article
Plant Sciences
Kristina V. Ivashchenko, Maria V. Korneykova, Olesya I. Sazonova, Anna A. Vetrova, Anastasia O. Ermakova, Pavel I. Konstantinov, Yulia L. Sotnikova, Anastasia S. Soshina, Maria N. Vasileva, Viacheslav I. Vasenev, Olga Gavrichkova
Summary: The phylloplane, as a part of green infrastructure, is important for plant health. This study found that the activity and functional diversity of the phylloplane are influenced by anthropogenic pollution and microclimatic conditions. The microbial activity and taxonomic diversity of the phylloplane can serve as additional indicators for ecosystem health.
Article
Soil Science
A. A. Vetrova, S. Ya Trofimov, R. R. Kinzhaev, N. A. Avetov, A. Arzamazova, I. F. Puntus, O. Sazonova, S. L. Sokolov, R. A. Streletskii, K. Petrikov, Ya A. Delegan, V. A. Samoylenko, A. E. Filonov
Summary: In this study, hydrocarbon-decomposing microorganisms were isolated from oil-contaminated soil samples of the Middle Ob region, including representatives of various genera. Their ability to decompose hydrocarbons under different conditions was evaluated, along with the production of biosurfactants and the presence of relevant genes. A microbial consortium was developed and showed promising results for bioremediation of oil-contaminated soils in the Middle Ob region.
EURASIAN SOIL SCIENCE
(2022)
Review
Biotechnology & Applied Microbiology
Anastasiya A. Ivanova, Svetlana A. Mullaeva, Olesya Sazonova, Kirill Petrikov, Anna A. Vetrova
Summary: One of the most frequently used methods for eliminating oil pollution is the use of biological preparations based on oil-degrading microorganisms, particularly bacteria of the genus Pseudomonas. While individual biochemical pathways and genes related to hydrocarbon degradation have been extensively studied, microorganisms capable of simultaneous degradation of different classes of hydrocarbons are poorly understood. Transcriptomics and proteomics are promising approaches for understanding metabolic interactions under different growth conditions. This review summarizes the current knowledge on Pseudomonas bacteria capable of simultaneous oxidation of hydrocarbons and highlights the most important findings obtained from transcriptomic and proteomic analyses.
FOLIA MICROBIOLOGICA
(2022)
Article
Microbiology
Galina A. Ekimova, Dmitry N. Fedorov, Nina Doronina, Valentina N. Khmelenina, Ildar I. Mustakhimov
Summary: This study demonstrates that AcdR in the plant-associated methylotrophic bacterium Methylobacterium radiotolerans mediates the transcription activation of the acdS gene in the presence of the inducer ACC or 2-aminoisobutyrate, and the excess of AcdR regulatory protein assists in transcription initiation even in the absence of the inducer.
ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICROBIOLOGY
(2022)
Article
Green & Sustainable Science & Technology
Leonid Perelomov, Olga Sizova, Mohammad Mahmudur Rahman, Irina Perelomova, Tatiana Minkina, Sergei Sokolov, Yury Atroshchenko
Summary: This study isolated and identified bacteria strains that tolerate concentrations of heavy metals in domestic wastewater. The findings suggest that these resistant strains could be applied in the biological decontamination of wastewater.
Article
Microbiology
Olesya Sazonova, Olga Gavrichkova, Anastasia A. Ivanova, Kirill Petrikov, Rostislav A. Streletskii, Dmitriy A. Sarzhanov, Maria Korneykova, Andrey Novikov, Viacheslav Vasenev, Kristina Ivashchenko, Marina Slukovskaya, Anna A. Vetrova
Summary: A comparative study was conducted on the total bacterial communities and cultivable polycyclic aromatic hydrocarbons (PAH) degrading bacteria in different functional zones in Moscow and Murmansk. The results showed variations in the PAH composition in road and leaf dust. Analysis of the microbial communities indicated that minor degrading strains may play a key role in PAH degradation.
Article
Microbiology
Nina V. Doronina, Alina A. Chemodurova, Denis S. Grouzdev, Veronika V. Koziaeva, Nadezhda V. Agafonova, Wenyu Shi, Linhuan Wu, Elena N. Kaparullina
Summary: Three novel facultatively methylotrophic bacteria isolated from activated sludges were characterized. They were classified as a new species of the genus Ancylobacter and four previously classified species were suggested to be reclassified under the genus Ancylobacter. The polyphasic analyses supported these reclassifications.
ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICROBIOLOGY
(2023)
Article
Microbiology
A. A. Chemodurova, A. S. Reshetnikov, N. V. Agafonova, N. V. Doronina
Summary: This study conducted a comparative phylogenetic analysis of NAD(+)-dependent formate dehydrogenases (NAD(+)-FDH) genes in methylotrophs. The analysis showed that the position of the Xanthobacteraceae family on the phylogenetic tree correlates with the 16S rRNA gene-based phylogeny. The conservation of NAD(+)-FDH proteins within certain genera of methylotrophs was also observed.
Article
Microbiology
Olesya I. Sazonova, Anastasia A. Ivanova, Yanina A. Delegan, Rostislav A. Streletskii, Diana D. Vershinina, Sergei L. Sokolov, Anna A. Vetrova
Summary: This study reports the complete genome of Delftia tsuruhatensis strain ULwDis3, an organism poorly studied in microorganisms of the genus Delftia. For the first time, genes involved in naphthalene degradation pathways were identified in a strain of the genus Delftia. The strain exhibited different enzyme activities during growth on naphthalene as the sole carbon and energy source.
Article
Microbiology
Anna A. Vetrova, Olesya I. Sazonova, Anastasia A. Ivanova, Rostislav A. Streletskii, Dmitriy A. Sarzhanov, Maria V. Korneykova, Andrey I. Novikov, Viacheslav I. Vasenev, Kristina V. Ivashchenko, Marina V. Slukovskaya, Olga Gavrichkova
Summary: The impact of geographical factors, functional zoning, and biotope type on the diversity of microbial communities and chemical components in the dust of urban ecosystems was studied. Comprehensive analyses of bacterial and fungal communities, polycyclic aromatic hydrocarbons (PAHs), and metals in road and leaf dust in three urban zones were conducted. It was found that bacterial communities were affected by functional zoning, biotope type, and geographical components, while fungal communities were only impacted by biotope type. The structure of fungal communities was mostly impacted by PAHs, while bacteria were sensitive to metals. Bacteria of the genus Sphingomonas were proposed as indicators of the ecological state of urban ecosystems based on their presence in road and leaf dust.
Article
Biochemistry & Molecular Biology
Veronika Y. Poshekhontseva, Nikolai I. Strizhov, Mikhail V. Karpov, Vera M. Nikolaeva, Alexey V. Kazantsev, Olesya I. Sazonova, Andrey A. Shutov, Marina V. Donova
Summary: In this study, the expression of a modified P450 BM3 mutant was successfully achieved, with its biocatalytic activity enhanced by increasing the solubility of the protein and supplementing the cells with an additional cofactor regeneration system. Moreover, it was found that recombinant enzymes can be obtained using synthetic genes and new approaches for microbiological production of 7 beta-hydroxylated steroids may be developed.
BIOCHEMISTRY-MOSCOW
(2023)